Step-by-step explanation:
= 4x² + 12x + 9
= 4x² + 6x + 6x + 9
= 2x(2x + 3) + 3(2x + 3)
= (2x + 3)(2x + 3)
= (2x + 3)²
Answer:
75.03
Step-by-step explanation:
14×11×sin(77)
= 75.02649499..
≈ 75.03 (rounded to nearest hundredth)
Answered by GAUTHMATH
Answer:
25 and 15
Step-by-step explanation:
Since we were given two parts to be in ratio 5:3
the first number is then 5x , and second number 3x
Note that the second number is more than the first so it becomes
3x + 10
5x = 3x +10, 5x - 3x = 10
2x = 10, x = 5
from the question, we find the two parts ;
the first number would be 5x
5 x 5 = 25
and second number, 3x = 3x 5 = 15
so the two numbers are 25 and 15.. 25 + 15 = 40
Answer:
In 6.4 days the size of the population will be tripled.
Step-by-step explanation:
Let the equation be
Given that the population doubles every 4 days.
It means, A becomes 2P in 4 days.
Now, we have to find time t, when A becomes 3P.
Therefore, in 6.4 days the size of the population will be tripled.
Answer:
it is the first one
Step-by-step explanation: